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KEY: Obstacle.
SYN: Impediment, obstruction, hindrance, objection, bar, difficulty, check, obstruction.
ANT: Course, proceeding, career, advancement.
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KEY: Obstinate.
SYN: Headstrong, stubborn, refractory, self-willed, pertinacious, obdurate, perverse, intractable.
ANT: Amenable, complaisant, yielding, docile, ductile, characterless, irresolute, wavering.
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KEY: Obstinacy, [See OBSTINATE].